workspace/kcontrol/hardware/display/display.cpp

   1 /* This file is part of the KDE project
   2    Copyright (C) 2003-2004 Nadeem Hasan <nhasan@kde.org>
   3
   4    This program is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU General Public
   6    License as published by the Free Software Foundation; either
   7    version 2 of the License, or (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; see the file COPYING.  If not, write to
  16    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17    Boston, MA 02110-1301, USA.
  18 */
  19
  20 #include <QApplication>
  21 #include <QLayout>
  22 #include <QTabWidget>
  23 #include <QVBoxLayout>
  24 #include <QDesktopWidget>
  25
  26 #include <kcmoduleloader.h>
  27 #include <klocale.h>
  28 #include <kdialog.h>
  29
  30 #include "display.h"
  31 #include <KPluginFactory>
  32 #include <KPluginLoader>
  33
  34 K_PLUGIN_FACTORY(DisplayFactory,
  35         registerPlugin<KCMDisplay>();
  36         )
  37 K_EXPORT_PLUGIN(DisplayFactory("display"))
  38
  39 KCMDisplay::KCMDisplay( QWidget *parent, const QVariantList & )
  40     : KCModule( DisplayFactory::componentData(), parent )
  41     , m_changed(false)
  42 {
  43   m_tabs = new QTabWidget( this );
  44
  45   addTab( "randr", i18n( "Size && Orientation" ) );
  46   addTab( "nvidiadisplay", i18n( "Graphics Adaptor" ) );
  47   addTab( "nvidia3d", i18n( "3D Options" ) );
  48   addTab( "kgamma", i18n( "Monitor Gamma" ) );
  49   if ( QApplication::desktop()->isVirtualDesktop() )
  50     addTab( "xinerama", i18n( "Multiple Monitors" ) );
  51   addTab( "energy", i18n( "Power Control" ) );
  52
  53   QVBoxLayout *top = new QVBoxLayout( this );
  54   top->setMargin( 0 );
  55   top->setSpacing( KDialog::spacingHint() );
  56   top->addWidget( m_tabs );
  57
  58   setButtons( Apply|Help );
  59   load();
  60 }
  61
  62 void KCMDisplay::addTab( const QString &name, const QString &label )
  63 {
  64   QWidget *page = new QWidget( m_tabs );
  65   QVBoxLayout *top = new QVBoxLayout( page );
  66   top->setMargin( KDialog::marginHint() );
  67
  68   KCModule *kcm = KCModuleLoader::loadModule( name, KCModuleLoader::None,page );
  69
  70   if ( kcm )
  71   {
  72     top->addWidget( kcm );
  73     m_tabs->addTab( page, label );
  74
  75     connect( kcm, SIGNAL( changed(bool) ), SLOT( moduleChanged(bool) ) );
  76     m_modules.insert(kcm, false);
  77   }
  78   else
  79     delete page;
  80 }
  81
  82 void KCMDisplay::load()
  83 {
  84   for (QMap<KCModule*, bool>::ConstIterator it = m_modules.constBegin(); it != m_modules.constEnd(); ++it)
  85     it.key()->load();
  86 }
  87
  88 void KCMDisplay::save()
  89 {
  90   for (QMap<KCModule*, bool>::Iterator it = m_modules.begin(); it != m_modules.end(); ++it)
  91     if (it.value())
  92       it.key()->save();
  93 }
  94
  95 void KCMDisplay::moduleChanged( bool isChanged )
  96 {
  97   QMap<KCModule*, bool>::Iterator currentModule = m_modules.find(static_cast<KCModule*>(const_cast<QObject*>(sender())));
  98   Q_ASSERT(currentModule != m_modules.end());
  99   if (currentModule.value() == isChanged)
 100     return;
 101
 102   currentModule.value() = isChanged;
 103
 104   bool c = false;
 105
 106   for (QMap<KCModule*, bool>::ConstIterator it = m_modules.constBegin(); it != m_modules.constEnd(); ++it) {
 107     if (it.value()) {
 108       c = true;
 109       break;
 110     }
 111   }
 112
 113   if (m_changed != c) {
 114     m_changed = c;
 115     emit changed(c);
 116   }
 117 }
 118
 119 #include "display.moc"